Horological device.



W. SZABAT. 'HOROLOGICAL DEVICE.

APPLICATION FILED'FEB. 16. 1917.

Patented Jal l. 8,1918.

2 SHEETSSEBBT l W. SZABAT. HOROLOGICAL DEVICE. APPLICATION FILED FEB.I6. I917.

Patented J an; 8, 1918.

2 SHBETSSHEET '2 WALENTY SZABAT, OF DEPUE, ILLINOIS.

HOROLOGICAL DEVICE.

Specificationof Letters Patent.

Patented Jan. 8, 1918.

Application filed February 16, 1917. 7 Serial No. 148,934.

T 0 all whom it may concern Be it known that I. \VALENTY SZABA'I, asubiect of the Czar of Russia, and a resident of Depue, in the county ofBureau and State of Illinois, have invented certain new and usefulImprovements in Horological Devices, of which the following is aspecification.

This invention relates to improvements in horological devices andparticularly to types depending for accuracy on natural light andcommonly known as sun dials.

The principal object of the invention is to provide an instrument ofthis type which may be compactly folded and carried in the pocket orextended when it is desired to determine the time by observation of theindications obtained.

A second object is to combine the sun dial with a time piece or watchand to further combine within the casing a compass whereby the settingof the sun dial device may be accurately performed, and finally, toprovide the entire device in a form which may be inclosed within thewalls of an ordinary watch case.

These objects are attained by the novel combination and construction ofparts hereafter described and shown in the accompanying drawing, inwhich Figure 1 is a perspective view showing the device extended inposition for determining time.

Fig. 2 is a plan view of the same, also in an open position.

Fig. 3 is a perspective view showing a detail of construction.

Fig. 4 is a plan view similar to that of Fig. 2, but showing the sundial index removed.

Fig. 5 is a front elevation showing the case opened and the compassfolded.

Fig. 6 is a side elevation showing both cases folded and the watch dialas viewed from the exterior of the casing.

Fig. 7 is a plan view of the sun dial index.

Fig. 8 is a perspective view of a detail of construction, and s Fig. 9is a similar perspective view showing another detail.

In the several views, the bezel of the casing is indicated by therumeral 15 and is shown to be of the usual watch case constructionprovided with an inner rear cover 16, and outer cover 17 secured in theusual manner, as is also the ring 14 and knurled winding knob 18. Thefront cover so is formed with a circular aperture having aneccentrically disposed transparent plate 21 in register with the watchdial 22, so that the minute and hour hands, respectively 23 i and 24,may be seen in connection with the numerals disposed on the face of thedial 22, even if the cover 20 be closed.

Below the watch dial 22 is pivotally mounted a compass 28 by means ofpivots 20 attached within the casing in such manner that when notrequired the compass may stand parallel to the covers, desired to usethe device as a sun dial, the compass is turned into the position shownin Fig. 1,so that the pointer may accurately indicate the direction inwhich the device must be placed. so that the shadow from the post 30will fall correctly with respect to the sun dial index 32.

This post is engaged at its lower end to an arcuate slide 33 by means ofthe clamp element 34, the slide operating in a slot 35 formed in asector shapedelement 36 engaged in a frame 38 secured to the outercasing 20.

Thus the post 30 when not in use may he moved laterally to one edge ofthe casing 20 and then folded so that the cover or lid may be closed.\Vhen erected in the position shown in Fig. 1, it is held in position bymeans of a spring 39 attached to the element 36. The dial 32, as shownin Fig. 7, is semi-circular in outline and divided into ten equalportions by radial lines 40 extending from its periphery inward to thenumerals 41, which are indicative of the hours at which observation istaken.

In order to distinguish lesser periods of time than full hours, obliquelines 42, cross uniformly spaced circular lines 44, formedconcentrically upon the margin of the dial 32, by means of which periodsof time of five minutes can In operation, the covers 17 and 20areextended at length foiming a base from which the body extendsvertically, the same containing the compass 28 which is turnedhorizontally, parallel with the disposition of the covers so that theentire device may be turned axially to bring the needle or index of thecompass into such position as to point north: the slide 33 is then movedto bring the base of the post 30 substantially central of the cover 20and then the 0st is erected, whereupon its shadow will all upon theindex 32,-

be accurately differentiated.

but when it is I claim as new and desire to secure by Letters Patent, is

1. In a horological implement, the com b1nat1on with a short cylindricalcasing pro- Vided with hinged covers upon each side,of.

a segmental plate secured in one of said covers, a, slide operable insaid plate, a post hingedly attached to said slide, means for holdingsaid post when in an erect position, a dial secured to said casing withreference to said post, said dial indicating hours and fractionsthereon, and a compass pivotally mounted in said casing disposable ineither a vertical or horizontal position therewithin, said covers beingadapted to protect the elements therewithin when closed.

2. In avhorological implement, the combicovers on each side thereof, ofa collapsible post secured; in..o1,1eof said covers means formaintaining said post in an erect position, a

scale arranged on said cover with relation to said post, said scalehaving a plurality of radial lines, circular lines concentric. to; theexterior of saidscale and oblique lines disposed between the radiallines crossing said concentric lines whereby time may be .ascertained inhours and subdiyisionsthereof through the shadow of said post, and acompass pivotally mounted in said case by means of which the case maybe, properly positioned.

Signed at D'epue, in the county of Bureau, and State of Illinois, thisseventh day of February 1917.

NALENTY SZABATI Copies of this patent may be obtained 011 five centseach, by, addressing the Commissioner of Batents, Washington, D. 6;

